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Potential use of marinas as nursery grounds by rocky fishes: insights from four Diplodus species in the Mediterranean ArchiMer
Bouchoucha, Marc; Darnaude, A. M.; Gudefin, A.; Neveu, R.; Verdoit-jarraya, M.; Boissery, P.; Lenfant, P..
The construction of marinas along the shoreline has caused substantial habitat destruction within the sheltered coastal areas previously used as nursery grounds by many fish species. However, although the negative ecological impacts of these constructions have been reported extensively, their potential roles in the functioning of the coastal zone remain largely unknown. Here, we surveyed the juveniles of 4 Diplodus species in 5 marinas located along the French Mediterranean coast to assess whether rocky fishes can successfully settle inside these artificialized coastal areas. Inter-specific differences in the spatiotemporal use of the various artificial habitats provided by marinas were investigated between April and August over 2 consecutive years. We...
Tipo: Text Palavras-chave: Coastal areas; Habitat anthropization; Fish juveniles; Sparids; Habitat preferences; Ecological engineering; Biohut.
Ano: 2016 URL: https://archimer.ifremer.fr/doc/00334/44501/44196.pdf
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Otolith fingerprints as natural tags to identify juvenile fish life in ports ArchiMer
Bouchoucha, Marc; Pecheyran, C.; Gonzalez, Jean-louis; Lenfant, P.; Darnaude, A. M..
The construction of ports has caused substantial habitat destruction in coastal areas previously used as nursery grounds by many fish species, with consequences to fish stocks. These artificial coastal areas might provide alternative nursery habitats for several species for juvenile fish abundances and growth in ports, although their contribution to adult stocks had never been estimated. The variability of otolith composition in the juveniles of two Diplodus species was investigated in three contrasting port areas and two adjacent coastal juvenile habitats of the Bay of Toulon (northwestern Mediterranean) in order to determine the possible use of otolith fingerprints as natural tags for the identification of juvenile fishes in ports. The global accuracy of...
Tipo: Text Palavras-chave: Coastal areas; Nursery habitats; Fish; LA-ICPMS; Contamination.
Ano: 2018 URL: https://archimer.ifremer.fr/doc/00449/56051/57571.pdf
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Growth, condition and metal concentration in juveniles of two Diplodus species in ports ArchiMer
Bouchoucha, Marc; Brach-papa, Christophe; Gonzalez, Jean-louis; Lenfant, P.; Darnaude, A. M..
High abundances of juvenile fish in certain ports suggest they might provide alternative nursery habitats for several species. To further investigate this possibility, post-settlement growth, metal uptake and body condition were estimated in 127 juveniles of two seabream species, collected in 2014–15, inside and outside the highly polluted ports of the Bay of Toulon. This showed that differences in local pollution levels (here in Hg, Cu, Pb and Zn) are not consistently mirrored within fish flesh. Muscle metal concentrations, below sanitary thresholds for both species, were higher in ports for Cu, Pb and V only. Otherwise, fish muscle composition principally differed by species or by year. Juvenile growth and condition were equivalent at all sites. Higher...
Tipo: Text Palavras-chave: Coastal areas; Nursery habitats; Fish; Contamination; Otoliths.
Ano: 2018 URL: https://archimer.ifremer.fr/doc/00408/51932/52609.pdf
Registros recuperados: 3
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